Pipe joints or couplings – Ball and socket
Patent
1998-10-30
2000-04-25
Arola, Dave W.
Pipe joints or couplings
Ball and socket
28513321, F16L 2704
Patent
active
060535385
ABSTRACT:
A ball-and-socket joint of the type where the male end (1) of a first pipe element (2) has a spherical saddle (5) designed to be inserted and pivot in a specially designed housing with a spherical profile (11) which is set on the Y--Y axis socket of a second pipe element (4). A waterproof elastomer ring gasket (16) is set in a ring groove (15) in the socket's (3) internal surface. The groove is designed and located in such a way that it forms an expansion chamber for the elastomer of the gasket during the insertion of the spherical saddle into the socket and insures, in a locked position, the pressing of the gasket on the outside surface of the saddle located beyond the maximum diameter of said saddle measured in a direction perpendicular to the axis Y--Y of the socket. The gasket is thus subjected to a residual radial compression that guarantees the waterproofness of the assembly and simultaneously prohibits the dislocation of the pipe elements.
REFERENCES:
patent: 2040008 (1936-05-01), Kreidel
patent: 2277990 (1942-03-01), Lanninger
patent: 2971701 (1961-02-01), Shames et al.
patent: 4129306 (1978-12-01), Konno et al.
patent: 5806896 (1998-09-01), Sato et al.
Berthon Francis
Hauer Jean-Claude
Arola Dave W.
Pont-a-Mousson
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